O2 Jet vs Siemens A31
O2 Jet
Siemens A31
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Network
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2G networkGSM 850, 900, 1800, 1900GSM 900, 1800
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GPRSYesYes
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EDGE
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Availability
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Oficially announced2006-102005-11
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Status
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Design
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SIMMini-SIMMini-SIM
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Height117 mm102 mm
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Width47 mm46 mm
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Thickness20 mm17.6 mm
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Weight121 g85 g
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ColorsBlackAnthracite, Ruby Red
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Display
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Display typeTFTCSTN
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Physical size2.0 inches-
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Resolution176 x 220 pixels128 x 128 pixels
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Pixel density141 ppi-
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Display colors6656066560
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Hardware
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Internal storage56 MB1.5 MB
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Memory card
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Sound
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3.5mm jackNoNo
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LoudspeakerYesYes
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NotificationsVibration; Downloadable polyphonic, MP3 ringtonesVibration; Polyphonic(32) ringtones
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Multimedia
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RadioNoNo
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Connectivity
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WLAN
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USBYes
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Bluetoothv2.0
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GPSNoNo
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Features
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Messaging SMSSMSSMS
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Messaging EMS-EMS
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Messaging MMSMMSMMS
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Messaging EmailEmail-
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WAPYesWAP 1.2.1
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JavaYesYes
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Java MIDP-MIDP 1.0
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Battery
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Battery typeLi-IonLi-Ion
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Battery capacity-820 mAh
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Talk time9 h 50 min5 h
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Standby time540 h270 h